1975 Cub Generator

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Jamesk
Cub Star
Cub Star
Posts: 51
Joined: Mon Aug 21, 2017 8:32 pm
Zip Code: 38730
Tractors Owned: 1963 John Deere 4010
1958 Ford 851
1975 International Cub

1975 Cub Generator

Postby Jamesk » Sat Dec 08, 2018 12:32 pm

My generator doesn’t seem to be charging. I’ve had it tested along with the voltage reg and it supposedly is working fine. But not for me.
1). I have power at both post on the ampmeter.
2). When I turn the key switch on ampmeter shows discharge.
3). When trying to polarize the generator (battery to generator at the regulator post) I get no spark.
4). So I tested voltage at the regulator. Both the battery and generator terminals show 12 volts.
SHOULD BOTH TERMINALS SHOW 12 VOLTS???

I have a new Brillman wiring harness and is wired per their instructions.

Thanks in advance.
JK

Jamesk
Cub Star
Cub Star
Posts: 51
Joined: Mon Aug 21, 2017 8:32 pm
Zip Code: 38730
Tractors Owned: 1963 John Deere 4010
1958 Ford 851
1975 International Cub

Re: 1975 Cub Generator

Postby Jamesk » Sat Dec 08, 2018 1:33 pm

An added note, I’ve been theough the trouble shooting flow chart and it appears that the generator isn’t charging. Not good

JK

User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
Posts: 23129
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Re: 1975 Cub Generator

Postby John *.?-!.* cub owner » Sat Dec 08, 2018 2:08 pm

The only time both the Bat and Gen terminals of the regulator should read the same is when the engine is running and charging. But then it should be around 13.5 volts. My thoughts are incorrect wiring, or bad generator/ regulator. Hard to tell more than that without being hands on. If you want to bring it up, it will only take about 5 hours each way as a quick estimate. Better bring/buy some long handle underwear though, we are running high temps around 30 degrees. :cry:
If you are not part of the solution,
you are part of the problem!!!

Jamesk
Cub Star
Cub Star
Posts: 51
Joined: Mon Aug 21, 2017 8:32 pm
Zip Code: 38730
Tractors Owned: 1963 John Deere 4010
1958 Ford 851
1975 International Cub

Re: 1975 Cub Generator

Postby Jamesk » Sat Dec 08, 2018 2:40 pm

What’s weird John is the generator was checked out and showed to be working. I’m not sure I’ve got it polarized. I disconnected the wires to gen and put a jumper on the two generator post. Cranked the tractor, I don’t get a constant voltage reading. But I think the generator has to be polarized to generate power.

If I had a covered trailer I’d be on the road headed your way right now. As far as I know this is all that’s needed to complete the little tractor. You gotta love it

Jk

User avatar
AL Farmall Boy
5+ Years
5+ Years
Posts: 2396
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111
Circle of Safety: Y

Re: 1975 Cub Generator

Postby AL Farmall Boy » Fri Dec 14, 2018 10:32 am

Check all of your grounds. With that new paint it could be the problem. Run it at high throttle to make sure it is kicking in. You said you ran the troubleshooter, but I would do it again. Non polarizing shouldn't be the reason it isn't charging. That just makes sure the polarity (+-) of the current is in the correct direction.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com

:tractor: Follow my page "Alabama Tractor Pickers" on YouTube & Facebook! :tractor:

User avatar
John *.?-!.* cub owner
Team Cub Guide
Team Cub Guide
Posts: 23129
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Re: 1975 Cub Generator

Postby John *.?-!.* cub owner » Fri Dec 14, 2018 3:17 pm

I believe he took the generator back to the shop and they found a stuck brush that was overlooked the first time.
If you are not part of the solution,
you are part of the problem!!!

User avatar
AL Farmall Boy
5+ Years
5+ Years
Posts: 2396
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111
Circle of Safety: Y

Re: 1975 Cub Generator

Postby AL Farmall Boy » Fri Dec 14, 2018 5:26 pm

Ok. Makes sense. Thank you for the update.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com

:tractor: Follow my page "Alabama Tractor Pickers" on YouTube & Facebook! :tractor:

Jamesk
Cub Star
Cub Star
Posts: 51
Joined: Mon Aug 21, 2017 8:32 pm
Zip Code: 38730
Tractors Owned: 1963 John Deere 4010
1958 Ford 851
1975 International Cub

Re: 1975 Cub Generator

Postby Jamesk » Wed Dec 19, 2018 2:34 pm

Yep, John and I got on the phone one night and went through a series of dobyou have fire here, is that grounded.... etc and John said you Generator is bad. So I took the generator back to the folks that “FIXED IT”. It took about 15 minutes to find the problem, a vacation day, four hours of driving and forty dollars in gas. Could have been worse for sure. Like John said, there was a stuck brush. The brush actually arced to the brush holder, some how, this not allowing the brush to make good contact with the armature. Anyway, thanks to John, Bob, Buddy, Chris, Chase and Mr. Larry ( and several others) for all their knowledge, support and parts. Hope to see you guys at a fest or two

JK

User avatar
AL Farmall Boy
5+ Years
5+ Years
Posts: 2396
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111
Circle of Safety: Y

Re: 1975 Cub Generator

Postby AL Farmall Boy » Wed Dec 19, 2018 2:41 pm

Glad you shared so we all think to look for stuff like that when it doesn't make sense.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com

:tractor: Follow my page "Alabama Tractor Pickers" on YouTube & Facebook! :tractor:


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall Cub”

Who is online

Users browsing this forum: No registered users and 7 guests